Cool cool...congrats on the Stanford interview BTW...was gonna say that in the Interview thread but I'll just say it now 🙂. An extra day of interviews at Stanford regarding research-residency? Wow...what is this? Sounds a lot like those MSTP interviews we went to many years ago.
I believe we both heard from the Brigham as well...however, they didn't explicitly mention any kind of research residency. Oh well, that info may be more forthcoming in future correspondences or the interview itself.